These slackliners aren’t slacking off. Balance athletes Nathan Paulin and Danny Menšik recently broke the world record for longest highline walk (previously set at 1640 feet) by walking a slackline 3346 feet between two mountains in Aiglun, France.

Red Bull captured breathtaking footage of Paulin and Menšik’s vertigo-inducing walk. While the feat is impressive in itself, their composure and patience as they maintain their balance and slowly traverse the slackline is truly awe-inspiring. In the video above, watch as Paulin and Menšik make their way across more than half a mile of rope suspended almost two thousand feet above the ground.

[h/t Gizmodo]

Banner Image Credit: Red Bull, YouTube